https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85849
Bug ID: 85849
Summary: [9 Regression] -O3 bootstrap failure
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: bootstrap
Assignee: unassigned at gcc dot gnu.org
Reporter: hjl.tools at gmail dot com
CC: rguenther at suse dot de
Target Milestone: ---
On x86-64, r260318 caused:
/export/gnu/import/git/gcc-test/bld/./prev-gcc/xg++
-B/export/gnu/import/git/gcc-test/bld/./prev-gcc/
-B/usr/9.0.0/x86_64-pc-linux-gnu/bin/ -nostdinc++
-B/export/gnu/import/git/gcc-test/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs
-B/export/gnu/import/git/gcc-test/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs
-I/export/gnu/import/git/gcc-test/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu
-I/export/gnu/import/git/gcc-test/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/include
-I/export/gnu/import/git/gcc-test/src-trunk/libstdc++-v3/libsupc++
-L/export/gnu/import/git/gcc-test/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs
-L/export/gnu/import/git/gcc-test/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs
-fno-PIE -c -O3 -g -fno-checking -gtoggle -DIN_GCC -fno-exceptions
-fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings
-Wcast-qual -Wmissing-format-attribute -Woverloaded-virtual -pedantic
-Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -fno-common
-DHAVE_CONFIG_H -I. -I. -I../../src-trunk/gcc -I../../src-trunk/gcc/.
-I../../src-trunk/gcc/../include -I../../src-trunk/gcc/../libcpp/include
-I../../src-trunk/gcc/../libdecnumber -I../../src-trunk/gcc/../libdecnumber/bid
-I../libdecnumber -I../../src-trunk/gcc/../libbacktrace -o asan.o -MT asan.o
-MMD -MP -MF ./.deps/asan.TPo ../../src-trunk/gcc/asan.c
during GIMPLE pass: fre
../../src-trunk/gcc/asan.c: In function \u2018rtx_insn*
asan_emit_stack_protection(rtx, rtx, unsigned int, long int*, tree_node**,
int)\u2019:
../../src-trunk/gcc/asan.c:1252:1: internal compiler error: in set_ssa_val_to,
at tree-ssa-sccvn.c:3396
asan_emit_stack_protection (rtx base, rtx pbase, unsigned int alignb,
^~~~~~~~~~~~~~~~~~~~~~~~~~
0x14b6002 set_ssa_val_to
../../src-trunk/gcc/tree-ssa-sccvn.c:3393
0x14b783d visit_reference_op_load
../../src-trunk/gcc/tree-ssa-sccvn.c:3827
0x14b851c visit_use
../../src-trunk/gcc/tree-ssa-sccvn.c:4154
0x14b9169 process_scc
../../src-trunk/gcc/tree-ssa-sccvn.c:4416
0x14b95ad extract_and_process_scc_for_name
../../src-trunk/gcc/tree-ssa-sccvn.c:4487
0x14b9756 DFS
../../src-trunk/gcc/tree-ssa-sccvn.c:4537
0x14baf68 sccvn_dom_walker::before_dom_children(basic_block_def*)
../../src-trunk/gcc/tree-ssa-sccvn.c:4970
0x1da2b13 dom_walker::walk(basic_block_def*)
../../src-trunk/gcc/domwalk.c:353
0x14bb58b run_scc_vn(vn_lookup_kind)
../../src-trunk/gcc/tree-ssa-sccvn.c:5086
0x14bec9a execute
../../src-trunk/gcc/tree-ssa-sccvn.c:6068
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
when GCC is configured with
--with-build-config='bootstrap-O3 bootstrap-debug' --disable-werror
